New answers tagged specific-question
3
I added the tag music-theory, which seemed fitting, and kept relations and discrete-mathematics, since those seemed like a reasonable choice.
I removed complex-analysis, which seems not related; this tag is for the study of functions of complex numbers, and not about analyzing complex problems.
I also removed elementary-set-theory as it does not seem ...
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I have awarded the bounty on the Question at issue, wishing that I could have done more than just upvote other Answers provided.
One thing that in hindsight would have been helpful is an Edit to that Question that pins down where in Pugh's book that proof is found. There seem to have been more than one editions/revisions, so a more complete citation (e.g. ...
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You simultaneously cross-posted the same question on both Math.SE and Math Educators.SE. That is not appropriate: cross-posting is generally considered not suitable on Stack Exchange. See Is cross-posting a question on multiple Stack Exchange sites permitted if the question is on-topic for each site?.
This site is not intended for blog posts. You write ...
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